# Leaky Subsystem API

> Exposing a subsystem's internal complexity directly to clients instead of hiding it behind a simplifying interface.

Record: `lexicon:leaky-subsystem-api`
Kind: anti-pattern
Layer: [Design Patterns Core](https://banes-lab.com/records/layer/design-patterns-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lexicon-leaky-subsystem-api

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Leaf-vs-Container Special-Casing](https://banes-lab.com/records/lexicon/leaf-vs-container-special-casing.md) and before [Per-Instance Duplicate State](https://banes-lab.com/records/lexicon/per-instance-duplicate-state.md).

## Category

- [Structural Patterns](https://banes-lab.com/records/lexicon-category/structural-patterns.md)

## Negated by

- [Facade Pattern](https://banes-lab.com/records/architecture/facade-pattern.md)

## Linked from

- [Structural Patterns](https://banes-lab.com/ontology/principles/architecture-category-structural-patterns.md)